Related Experiment Video
Updated: Jul 12, 2026

06:57
Pavlovian Conditioned Approach Training in Rats
Published on: February 4, 2016
Conditioned Approach and Contact Behavior toward Signals for Food or Brain-Stimulation Reinforcement
Abstract:
When presentation of a retractable lever always preceded food delivery, rats licked or gnawed the lever. They also approached but seldom orally contacted a lever signaling brain-stimulation reinforcement; instead, subjects sniffed, pawed, or "explored" the lever. Therefore, a Pavlovian conditioned stimulus evoked directed skeletal responses whose specific form depended on the forthcoming unconditioned stimulus.
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